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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
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Cryptogenic stroke: definitions and management.

William J Powers1

  • 1Department of Neurology, Duke University School of Medicine, Durham, NC.

Hematology. American Society of Hematology. Education Program
|December 5, 2025
PubMed
Summary
This summary is machine-generated.

Cryptogenic strokes, or embolic strokes of undetermined source (ESUS), are often linked to atherosclerosis. Aspirin and managing risk factors are recommended over anticoagulants for preventing recurrent strokes in these patients.

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Area of Science:

  • Neurology
  • Cardiology
  • Vascular Medicine

Background:

  • Cryptogenic strokes lack clear causes after evaluation.
  • Embolic strokes of undetermined source (ESUS) refine this classification.
  • Nonstenotic atherosclerosis is common in cryptogenic stroke/ESUS patients.

Purpose of the Study:

  • To clarify the classification and management of cryptogenic strokes.
  • To evaluate treatment strategies for embolic strokes of undetermined source (ESUS).

Main Methods:

  • Review of clinical evaluations for cryptogenic stroke.
  • Analysis of randomized controlled trials comparing treatments.
  • Assessment of atherosclerosis and risk factors in ESUS patients.

Main Results:

  • No benefit of oral anticoagulants over aspirin for recurrent stroke prevention in ESUS.
  • Atherosclerosis and its risk factors are prevalent in this patient group.

Conclusions:

  • Patients with cryptogenic stroke/ESUS benefit from aspirin therapy.
  • Aggressive management of atherosclerosis risk factors is crucial for ESUS patients.